Measurement of the Ti X ion density in a theta-pinch plasma by a laser heterodyne quadrature interferometer

Journal Article · Mon Apr 01 00:00:00 EST 1985 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.31.2764· OSTI ID:5801706

Datla, R U

The increase in the radial line integral of the electron density in the National Bureau of Standards theta-pinch plasma due to the ionization of the titanium impurity has been measured with the use of a He-Ne laser heterodyne quadrature interferometer. Titanium is injected as an impurity into the base gas of hydrogen with the use of a coaxial gun discharge between titanium electrodes. The Ti X ion density at its peak abundance in the plasma is deduced in each discharge from the measured increase in electron density by knowing the temporal charge-state distribution of Ti ions with the use of spectroscopy and assuming charge neutrality.

• Research Organization: Atomic and Plasma Radiation Division, National Bureau of Standards, Gaithersburg, Maryland 20899
• OSTI ID: 5801706
• Journal Information: Phys. Rev. A; (United States), Vol. 31:4
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA DIAGNOSTICS
INTERFEROMETRY
THETA PINCH
IMPURITIES
BEAM INJECTION
CALIBRATION
ELECTRON DENSITY
HYDROGEN
ION DENSITY
IONIZATION
LASERS
TITANIUM IONS
CHARGED PARTICLES
ELEMENTS
IONS
NONMETALS
PINCH EFFECT
700102* - Fusion Energy- Plasma Research- Diagnostics